Detroit's offensive line faces more questions than it has in years, with Frank Ragnow retiring and Kevin Zeitler departing in free agency, leaving a massive hole on the interior.

Come Thursday, we’ll be just two weeks away from watching the Lions in their first preseason game. Detroit's participation in the NFL's annual Hall of Fame Game will give the team a fourth exhibition to evaluate its players during what's sure to be a doozy of a training camp,